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Position: Home > Articles > Variation Trend of Humic Acid in Dry Anaerobic Digestion of Cow Dung China Biogas 2014,32 (05) 7-11+16

牛粪批次干发酵过程中腐植酸的变化趋势初探

作  者:
祝其丽;潘科;汤晓玉;王文国;胡启春
单  位:
农业部沼气科学研究所
关键词:
牛粪;干发酵;木质素;腐植酸
摘  要:
牛粪作为秸秆类原料经过反刍动物瘤胃消化后的产物,是生物腐植酸的发酵原料之一。该研究对3种牛粪干发酵过程中腐植酸的变化趋势及红外光谱特征进行了分析,结果表明:在为期90天的批次厌氧干发酵过程中,3种牛粪(奶牛粪、水牛粪、黄牛粪)中腐植酸的含量均有所增加,且木质素含量和腐植酸含量变化趋势相似。研究结果为后续深入开展牛粪干发酵过程中腐植酸形成机理及积累过程奠定了一定基础,进而为农业废弃物的资源化利用提供理论参考。
译  名:
Variation Trend of Humic Acid in Dry Anaerobic Digestion of Cow Dung
作  者:
ZHU Qi-li;PAN Ke;TANG Xi-ao-yu;WANG Wen-guo;HU Qi-chun;Biogas Institute of Ministry of Agriculture;Key Laboratory of Development and Application of Rural Renewable Energy,Ministry of Agriculture;
关键词:
cow dung;;dry anaerobic digestion;;lignin;;humic acid
摘  要:
As digested product from rumen of a ruminant,cow dung is one of raw materials to produce bio-humic acids.This article primarily studied the variation trend of humic acid in dry anaerobic digestion of cow dung and its characteristics under infrared spectrum. The results showed that the content of humic acid for all three kinds of cow dung increased after fermentation,and the content variation trend of lignin and humic acid were similar. These results settled the base for the further study on the formation mechanism of humic acid and its accumulation process.

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